10x15 storage unit cost: $120 to $275 per month

A 10x15 self storage unit is 150 square feet of floor area at typically 8 feet ceiling height, giving 1,200 cubic feet of usable storage volume. The 2026 national rent band runs $120 to $275 per month standard and $155 to $370 climate-controlled, drawn from current pricing-page data across Public Storage, Extra Space, and CubeSmart in April 2026.

The 10x15 is one of the cleaner illustrations of unit-mix economics. Per-square-foot cost on a 10x15 averages $1.05 against $1.10 for a 10x10 and $0.95 for a 10x20. The marginal cost per additional square foot once you scale beyond a 10x10 is lower than the typical buyer expects, which is why the size-up math from a 10x10 to a 10x15 is almost always favourable for any inventory above the 1-bedroom apartment level. The same logic applies all the way up to 10x30, with diminishing returns above 10x20.

The fee stack on top of rent is the same as for any size: $15 to $30 admin fee at move-in (one-time), $12 to $25 monthly insurance unless your renters or homeowners policy includes off-premises coverage, $10 to $15 disc lock, and a post-promo rate increase of 10 to 25 percent at month three to six. A 10x15 advertised at $179 with first-month-free typically settles at $211 to $230 by month four. The pattern is documented in Public Storage's 2024 10-K and applies across the chain segment.

The 10x15 is the size where 2-bedroom apartment moves stop feeling like Tetris. There is room for full-size furniture stacked properly (mattress on edge along the 15-foot wall, sofa stood vertically, dining table broken down flat against the back). You can fit two king bedroom sets, a complete living room, dining room, and three appliances with room to walk down the centre. For a typical 1,200 sqft 2-bedroom apartment full contents, the 10x15 is the right call about 75 percent of the time.

The other 25 percent of the time, the inventory is heavier than the apartment dimensions suggest (large sectional sofas, oversized dining tables, multiple appliances, dense book or document storage), and a 10x20 is the safer bet. The deciding factor is usually the dining table: a 6-seater rectangle dining table with bench seats and a buffet pushes you toward 10x20. A small round 4-seater fits comfortably in the 10x15.

For renovation storage during a remodel, the 10x15 is the standard recommendation for a single-floor strip-out (kitchen + living + dining + half bath). For full-house renovations of more than 1,500 sqft, look at 10x20 or 10x25.